Study on deactivation of Cu-Zn-Al catalysts in the synthesis of N-ethylethylenediamine

Hefang Wang; Ligong Chen; Guoyi Bai

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Study on deactivation of Cu-Zn-Al catalysts in the synthesis of N-ethylethylenediamine

机译：N-乙基乙二胺合成中Cu-Zn-Al催化剂失活的研究

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The performance of a Cu-Zn-Al catalyst employed in the synthesis of N-ethylethylenediamine from ethylenediamine and ethanol was studied.The results showed that the activity of the Cu-Zn-Al catalyst decreased with time-on-stream.Fresh and deactivated catalysts were characterized by XRD,XPS,N_2 adsorption-desorption and TEM.It was found that the crystallite size of Cu and ZnO in the deactivated catalyst were much bigger than those for the fresh catalyst.In addition,channels in the deactivated catalyst were blocked by carbonaceous deposits,so the surface area and pore volumes of the deactivated catalyst were much smaller than in the fresh catalyst.Therefore,it was concluded that the deactivation of the Cu-Zn-Al catalyst was mainly caused by the growth in the Cu and ZnO crystallite sizes and carbonaceous deposits.

机译：研究了由乙二胺和乙醇合成N-乙基乙二胺的Cu-Zn-Al催化剂的性能，结果表明Cu-Zn-Al催化剂的活性随生产时间的延长而降低。通过XRD，XPS，N_2吸附-脱附和TEM对催化剂进行了表征。发现失活催化剂中Cu和ZnO的晶粒尺寸比新鲜催化剂大。此外，失活催化剂中的通道被堵塞通过碳质沉积物，失活催化剂的表面积和孔体积比新鲜催化剂小得多。因此，可以得出结论，Cu-Zn-Al催化剂的失活主要是由于Cu和Zn的生长引起的。 ZnO晶粒大小和碳质沉积物。

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来源
《Catalysis Communications》 |2007年第26期|共5页
作者
Hefang Wang; Ligong Chen; Guoyi Bai;
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正文语种 eng
中图分类化学工业;
关键词
N-Ethylethylenediamine; Cu-Zn-Al catalyst; Deactivation; Fixed-bed reactor;

机译：N-乙基乙二胺;Cu-Zn-Al催化剂;失活;固定床反应器;

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专利

1. Study on deactivation of Cu-Zn-Al catalysts in the synthesis of N-ethylethylenediamine [J] . Hefang Wang, Ligong Chen, Guoyi Bai Catalysis Communications . 2007,第26期

机译：N-乙基乙二胺合成中Cu-Zn-Al催化剂失活的研究
2. Deactivation Studies of Alkali-Promoted Trimetallic Co-Rh-Mo Sulfide Catalysts for Higher Alcohols Synthesis from Synthesis Gas [J] . Venkateswara RaoSurisetty, Ajay Kumar Dalai, Janusz Kozinski Energy & fuels . 2011,第JANaaFEBa期

机译：碱促进的三金属Co-Rh-Mo硫化物催化剂用于合成气合成高级醇的失活研究
3. Studies on Au/Cu-Zn-Al catalyst for methanol synthesis from CO2 [J] . Pasupulety Nagaraju, Driss Hafedh, Alhamed Yahia Abobakor, Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications . 2015,第Null期

机译：二氧化碳合成甲醇的Au / Cu-Zn-Al催化剂的研究
4. Deactivation Studies of Alkali-Promoted Trimetallic Co-Rh-Mo Sulfide Catalysts for Higher Alcohols Synthesis from Synthesis Gas [C] . Venkateswara Rao Surisetty, Ajay Kumar Dalai, Janusz Kozinski International Conference Petroleum Phase Behavior and Fouling . 2011

机译：碱促进的粒子促粒子核硫化物催化剂对合成气较高醇的失活研究
5. THE KINETICS AND MATHEMATICAL MODEL OF THE DEACTIVATION OF FERRIC-MOLYBDATE CATALYSTS (REACTOR MODELLING, FORMALDEHYDE SYNTHESIS, METHANOL OXIDATION). [D] . KMIOTEK, STEPHEN JAMES. 1986

机译：钼酸铁催化剂失活的动力学和数学模型（反应器模型，甲醛合成，甲醇氧化）。
6. Comparative Study of the Frech Catalyst with Two Conventional Catalysts in the Heck Synthesis of 24-Diaminopyrimidine-based Antibiotics [O] . Baskar Nammalwar, Richard A. Bunce, K. Darrell Berlin, -1

机译：基于24-二氨基嘧啶-的Frech压铸催化剂与两个常规催化剂在赫克比较研究合成抗生素
7. Quantitative study of catalytic activity and catalytic deactivation of Fe–Co/Al2O3 catalysts for multi-walled carbon nanotube synthesis by the CCVD process [O] . Pirard, Sophie, Heyen, Georges, Pirard, Jean-Paul 2010

机译：Fe-Co / Al2O3催化剂通过CCVD合成多壁碳纳米管的催化活性和催化失活的定量研究
8. Study of the Deactivation of Methanol Synthesis Catalysts. Final Report [R] . Klier, K., Herman, R. G. 1978

机译：甲醇合成催化剂失活的研究。总结报告

Study on deactivation of Cu-Zn-Al catalysts in the synthesis of N-ethylethylenediamine

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